Demigender
demiboy · demigirl · demiandrogyne · demifluid
Added 28 Jul 2026
An umbrella for partial gender identities — demigirl, demiboy, demiandrogyne — where a person identifies partly with a gender and partly outside it. The demi- marks degree, not doubt: it is a settled half-connection.
- Prevalence
- Rare
- Type
- Gender identity
- Also known as
- demiboy, demigirl, demiandrogyne, demifluid
- Confidence
- Low confidence
- Sources
- 7 cited
- Added
- 28 Jul 2026
Overview
Demigender covers identities in which a person feels a partial connection to a gender: partly a girl, partly a boy, partly androgynous, with the remainder unspecified or absent. The commonest members of the family are demigirl and demiboy, and the umbrella exists mainly to hold them together.
The prefix is the point. Demi- marks degree, not doubt. A demigirl is not a person working out whether she is a girl; she is a person for whom "girl" is accurate as far as it goes and does not go all the way.
Definition & scope
Two neighbouring things get confused with it, and both confusions turn on reading partial as provisional.
The first is questioning, which names a genuinely unsettled position. Demigender identities are settled; what they describe is a stable fraction. The second is bigender, where two full genders are held. In a demigender identity the remainder is not a second gender — it is unnamed, or it is nothing.
The family has internal structure. Demigirl and demiboy are partial connections to woman and man; demiandrogyne to androgyny; demifluid and demiflux combine a stable part with a part that moves, which is where the term meets genderflux. A demigender person may or may not also be transgender: the partial connection can be to the gender they were assigned or to another one, and the two questions are independent.
History & origins
The dated record is unusually good for a term of this kind, because the family reached reference books early.
- early 2010s: the demi- prefix spreads across online gender vocabulary, forming demigirl and demiboy first and the umbrella term afterwards.
- 2016: it appears in a book on raising transgender teenagers; the citation record quotes Stephanie Brill noting that demigender "can be a subset of bigender of multigender, but does not have to be", and that part of the identity may remain stable while other parts are fluid.
- 2018: it enters a clinical training text, with Michael Beattie's Counselling Skills for Working with Gender Diversity and Identity observing in the same record that demigender people often identify as non-binary.
- 2019: Genny Beemyn's Trans People in Higher Education gives the family its standard enumeration — demigirl, demiboy and demiandrogyne.
- 2021: the labels enter large-sample research, with the Trevor Project reporting demigirl at 10% and demiboy at 8% among non-binary youth.
- 2024–2025: the Gender Census promotes demigirl and demiboy to its checkbox list, then removes them the following year — the mechanics of that swing are set out below.
In practice
Because the terms are specific, most demigender people use a broader word in general settings and the precise one where it will be understood. Pronoun practice varies and does not follow from the label: a demiboy may use he, they, both, or something else, and the partiality of the identity carries no implication about which.
Documentation is the usual difficulty. The 2022 U.S. Transgender Survey, with 92,329 respondents, records how poorly identity documents track identity in general, and a partial gender has nowhere at all to go on a form with two boxes.
Psychology
There is no research on demigender identity specifically, and the honest position is to say so rather than to generalise from adjacent work. The relevant literature is the broader clinical writing on non-binary genders: Richards and colleagues (2016) describe partial and mixed gender identifications as among the forms non-binary identity takes, and treat them as descriptions rather than diagnoses.
Formal placement is the same as for the rest of the vertical. The DSM-5 diagnoses gender dysphoria — distress — rather than identity, and the ICD-11 removed gender incongruence from its mental-disorders chapter in 2019.
Prevalence & culture
How common are demigender identities?
Two independent surveys measure the individual labels within non-binary populations, and they agree closely — which is why this entry's derivation is firmer than most in the family, even though no population survey isolates the umbrella.
The Trevor Project's 2021 survey of 34,759 LGBTQ youth found demigirl used by 10% and demiboy by 8% of its 8,998 non-binary respondents. The Gender Census 2024, with 48,645 responses, put demigirl at 7.1% and demiboy at 6% as checkbox options. Taken together the two labels reach somewhere in the range of 13–18% of non-binary respondents, before any allowance for people who use both.
| Source | Population | Demigirl | Demiboy |
|---|---|---|---|
| Trevor Project (2021) | 8,998 non-binary youth | 10% | 8% |
| Gender Census 2024 | 48,645 responses | 7.1% | 6% |
| Gender Census 2025 | 43,096 responses | 1.5% (write-in) | 1.0% (write-in) |
The third row is a measurement artefact rather than a collapse, and the census documents it as such: words score several times higher as checkboxes than as things people have to type, and demigirl and demiboy were moved off the checkbox list for 2025. Applying the checkbox-era share to the Williams Institute's 1.2 million non-binary LGBTQ adults — on the order of 0.46% of US adults — gives roughly 0.07% of adults, which is the figure recorded here.
Common questions
What does Demigender mean?
An umbrella for partial gender identities — demigirl, demiboy, demiandrogyne — where a person identifies partly with a gender and partly outside it. The demi- marks degree, not doubt: it is a settled half-connection.
What else is Demigender called?
Demigender is also known as demiboy, demigirl, demiandrogyne and demifluid.
- Non-BinaryUmbrella term for genders that are not exclusively man or woman. It is not a point midway between the two: the category includes both genders, neither, something else entirely, or a gender that changes.
- GenderfluxA gender whose intensity rises and falls rather than changing kind — strongly felt at some times, faintly or not at all at others. Genderflux is a claim about degree; genderfluid is a claim about direction.
- GenderqueerAn umbrella term for genders outside the man/woman binary, near-synonymous with non-binary but not interchangeable in tone: it reclaims a slur and carries the politics of the early-1990s US activism that produced it.
- AgenderHaving no gender at all, rather than a gender somewhere between man and woman. The claim is absence, not ambiguity: an agender person is not reporting a faint or unresolved gender but that the category does not apply to them.
- GenderfluidA gender that changes over time rather than settling on one description. The movement is the identity: a genderfluid person is not undecided between two fixed points, and the shifts are not a stage on the way to one.
From French demi-, "half", by way of Latin dimidius — the prefix of demitasse and demisemiquaver, marking a half or partial quantity. Attached to gender it forms a productive family: demigirl, demiboy, demiandrogyne, demifluid. The individual terms came first in online use in the early 2010s and the umbrella followed; print citations run from 2016, in works on transgender adolescence, gender-diversity counselling and trans students in higher education. The same prefix produces demisexual in orientation vocabulary, on the same logic of partiality but about attraction rather than gender.
Prevalence is computed from the entry's cited population estimate. Rows marked ESTare indicative editorial estimates scored against a fixed anchor rubric — not measured quantities. Method & anchors: methodology.
Rare · ≈ 1 in 1,000
Basis: DERIVED, not measured: no population survey isolates the demigender umbrella, but two independent surveys measure its main labels within non-binary populations and agree closely. The Trevor Project's 2021 survey found demigirl at 10% and demiboy at 8% among 8,998 non-binary respondents; the Gender Census 2024 (48,645 responses) put them at 7.1% and 6% as checkbox options. Applying a combined share of roughly 15% to the Williams Institute's 1.2 million non-binary LGBTQ US adults (on the order of 0.46% of adults) gives about 0.07%. Low confidence, since the base populations are self-selected and the two labels may overlap.
- 01Research Brief: Diversity of Nonbinary Youth (July 2021) — The Trevor Projectdemigirl used by 10% and demiboy by 8% of 8,998 non-binary respondents within a survey of 34,759 LGBTQ youth aged 13–24
- 02Gender Census 2024: Worldwide Report48,645 usable responses; demigirl at 7.1% and demiboy at 6% as checkbox identity words, the second independent measurement of the family's main labels
- 03Gender Census 2025: Worldwide Report43,096 usable responses; demigirl at 1.5% and demiboy at 1.0% once returned to write-in status, and the survey's own account of how much lower words score when typed rather than listed
- 04Nonbinary LGBTQ Adults in the United States — Williams Institute, UCLA School of Law1.2 million non-binary LGBTQ adults in the US — the base to which the measured within-population shares are applied
- 05Richards, Bouman, Seal, Barker, Nieder & T'Sjoen (2016), Non-binary or genderqueer genders, International Review of Psychiatry 28(1):95–102the clinical literature's treatment of partial and mixed gender identifications as descriptions of non-binary identity rather than diagnoses
- 06Early Insights: A Report of the 2022 U.S. Transgender Survey — Advocates for Trans Equality92,329 respondents; the gap between identity and identity documents faced by any gender that a two-box form cannot record
- 07ICD-11, gender incongruence — World Health Organizationthe 2019 removal of gender incongruence from the mental-disorders chapter; a partial gender identity is not a diagnosis